Three of the primary components of air are caarbon dioxide, nitrogen, and oxygen. In a sample containing a mixture of only these gases at exactly one atmosphere pressure, the partial pressures of carbon dioxide and nitrogen are given as PCO2 = 0.285 torr and PN2 = 557.601 torr. What is the partial pressure of oxygen? Answer in units of torr

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

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sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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